Alorna Geodetic Marker

Almeirim (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.18555675, -8.62153981
  • RGN sheet: 31A
  • Marker type: TRIPLO CILINDRO
  • Top altitude: 42.43 m
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Alorna Geodetic Marker is a point in the Portuguese National Geodetic Network (RGN), the reference network used for mapping, surveying and geographic measurement in Portugal. Coordinates: 39° 11' 8.0043" N, 08° 37' 17.5433" W (39.18555675, -8.62153981). RGN identification: 1:50,000 sheet 31A, order 2, type TRIPLO CILINDRO. Altimetry: orthometric altitude at the top 42.43 m; at the base 37.39 m; ellipsoidal altitude at the top 96.21 m. This record is based on official RGN coordinate data and is useful for understanding the landscape, planning map work or identifying a precise geographic reference point. Local access conditions can vary, so check the terrain before visiting. RGN source ID: rgn-31a-alorna

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